Gravitational vs Electric Force Ratio · PhysicsBowl 2007 #25

Physics · electromagnetism

Problem

If two protons are spaced by a distance R, what is the ratio of the gravitational force that one proton exerts on the other to the electric force that one proton exerts on the other? That is, FgravityFelectric=\frac{F_{gravity}}{F_{electric}} = (a) ≈10^{−8} (b) ≈10^{−16} (c) ≈10^{−20} (d) ≈10^{−36} (e) ≈10^{−43}

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